Heterozygous FH means a person has inhrited the fsulty gene from either of his/her parents. Homozygous FH-condition where a person inherits two faulty oraltered grnes from both the parents. If the two faulty genes are identical it is refereed to as homozygous FH. By calculating the chance by Punnett square- X+-faulty gene 2 children -Normal FH by inheriting one faulty and one healthy gene-XX+ and XY+ 1Child-Homozygous by receiving faulty gene from each of the parents-X+X+ 1Child-Normal-i.e. will not inherit FH as the child will receive the norml genes from the parents.XY Therefore, in one family of four chldren the ratio of homozygous FH will be 1:4, it will bw about 1 in a million.X+YX+X+X+X+YXXX+XY Solution Heterozygous FH means a person has inhrited the fsulty gene from either of his/her parents. Homozygous FH-condition where a person inherits two faulty oraltered grnes from both the parents. If the two faulty genes are identical it is refereed to as homozygous FH. By calculating the chance by Punnett square- X+-faulty gene 2 children -Normal FH by inheriting one faulty and one healthy gene-XX+ and XY+ 1Child-Homozygous by receiving faulty gene from each of the parents-X+X+ 1Child-Normal-i.e. will not inherit FH as the child will receive the norml genes from the parents.XY Therefore, in one family of four chldren the ratio of homozygous FH will be 1:4, it will bw about 1 in a million.X+YX+X+X+X+YXXX+XY.